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题名: LEAF MARGIN ANALYSIS: A NEW EQUATION FROM HUMID TO MESIC FORESTS IN CHINA
作者: Su, Tao3, 4, 5; Xing, Yao-Wu3, 4, 5; Liu, Yu-Sheng (Christopher)1, 2; Jacques, Frederic M. B.3; Chen, Wen-Yun3, 4; Huang, Yong-Jiang3, 4; Zhou, Zhe-Kun3
刊名: PALAIOS
关键词: TOOTHED LEAVES ; FOSSIL FLORAS ; SOUTH-AMERICA ; RAIN-FOREST ; CLIMATE ; TEMPERATURE ; SHAPE ; SIZE ; PALEOCLIMATE ; CHARACTERS
英文摘要: Leaf margin analysis (LMA) is a widely used method that applies present-day linear correlation between the proportion of woody dicotyledonous species with untoothed leaves (P) and mean annual temperature (MAT) to estimate paleotemperatures from fossil leaf floras. Previous works demonstrate that LMA shows regional constraints and to date, no equation has been modeled directly from Chinese forests. Fifty humid to mesic Chinese forests were chosen to understand the relationship between percentage of untoothed leaf species and MAT in China. Consistent with previous studies, the Chinese data indicate that P shows a strong linear correlation with MAT, but the actual relationship is a little different from those recognized from other regions. Among the several currently used LMA equations, the one resulting from North and Central American and Japanese data, rather than the widely used East Asian LMA equation, yields the closest values to the actual MATs of the Chinese samples (mean absolute error = 1.9 degrees C). A new equation derived from the Chinese forests is therefore developed, where MAT = 1.038 + 27.6 x P. This study not only demonstrates the similarity of the relationship between P and MAT in the Northern Hemisphere, but also improves the reliability of LMA for paleoclimate reconstructions of Chinese paleofloras.
出版日期: 2010-03-01
卷号: 25, 期号:3-4, 页码:234-238
语种: 英语
收录类别: SCI
学科分类: Geology; Paleontology
ISSN号: 0883-1351
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3096
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA
2.E Tennessee State Univ, Don Sundquist Ctr Excellence Paleontol, Johnson City, TN 37614 USA
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Peoples R China

Recommended Citation:
Su, T; Xing, YW; Liu, YS; Jacques, FMB; Chen, WY; Huang, YJ; Zhou, ZK.LEAF MARGIN ANALYSIS: A NEW EQUATION FROM HUMID TO MESIC FORESTS IN CHINA,PALAIOS,2010,25(3-4):234-238
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